PCE Instruments PCE-CRM 40 User manual

User Manual
Color Meter
PCE-CRM 40
PCE Americas Inc.
711 Commerce Way
Suite 8
Jupiter
FL-33458
USA
From outside US: +1
Tel: [phone]
Fax: [phone]
[email protected]
www.pce-instruments.com/english
www.pce-instruments.com
PCE Instruments UK Ltd.
Units 12/13
Southpoint Business Park
Ensign way
Hampshire / Southampton
United Kingdom, SO31 4RF
From outside UK: +44
Tel: [phone]
Fax: [phone]
[email protected]

CONTENT
ⅠProduct Overview .................................................................................................................... 1
1.1 Front Side ....................................................................................................................... 1
1.2 Reverse Side...................................................................................................................2
ⅡBasic Operation ....................................................................................................................... 3
2.1 Starting Page ................................................................................................................. 3
2.2 Home Page ....................................................................................................................4
2.3 System Sett ings .............................................................................................................5
2.3.1 Time Sett ing ........................................................................................................5
2.3.2 Power Management ............................................................................................6
2.3.3 Language............................................................................................................. 7
2.3.4 Version................................................................................................................. 7
2.4 Test Setup ......................................................................................................................8
2.4.1 Developer Tools ...................................................................................................8
2.4.2 Measurement unit selection ................................................................................9
2.5 Parameter description ...................................................................................................9
ⅢMeasurement ........................................................................................................................ 10
3.1 Measure Operation....................................................................................................... 10
3.2 Operat ion during Measuring ........................................................................................ 11
3.3Color Difference Value and Chromat icity Coordinates................................................... 12
3.4 View Data..................................................................................................................... 15
3.5 Maximum Measuring.................................................................................................... 17
3.6 Batch Data Processing.................................................................................................. 17
ⅣAttentions and Basic Maintenance ........................................................................................ 21
4.1 Attentions in use .......................................................................................................... 21
4.2 How to clean ................................................................................................................ 22
ⅤSpecifications........................................................................................................................ 23

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Ⅰ
Product Overview
PCE-CRM 40
1.1 Front Side
1 Measuring lens
2 Display Screen
3 UP key Move up
4 MAX key Maximum value
5 OK key Confirm
6 DOWN key Move down
7 MENU key Moves to the main measurement screen from other
creens and submenus.
8 BACK key Moves back one level in the menu structure.
9 POWER key Power
10 USB MICRO Interface Connected with power adapter to realize the charging,
connected with computer to realize data transmission.
11 SD slot Install SD card into this slot.

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1.2 Reverse Side
12 Tripod jack
13 Nameplate
14 Wrist Strap Hook
15 HOLD key Press the button，the device would pause and
save the latest data, and word ‘hold’ shows
on the screen in the top left corner;
Press the button once again, and the device
would cont inue working.
16 Measuring Lens Uninstall button The button is set for manufacturer
maintenance. It is strictly prohibited to
disassemble privately in any case, avoiding
causing irreversible damage.

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Ⅱ
Basic Operation
2.1 Starting Page
Press the power button for 1-2 seconds，after the beep, the device starts up and
shows the starting page.
After the starting process, the measuring page shows directly as below:
Press the button ‘MENU’ to jump into home page and operate other buttons to set up the

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device for measuring.
2.2 Home Page

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2.3 System Settings
Get into the system settings, the factory date has been set as Beijing Time. Power
management and language are default, users can change if necessary.
2.3.1 Time Setting
Time setting can be accurate to seconds, which has already been set in Beijing Time. No

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need to change if not necessary.
2.3.2 Power Management
There are functions include screen backlighting time setting, auto-shut off time setting
and backlight brightness adjustment.
LCD backlighting time is set for 30 seconds in default, and the auto-shut off is set for 30
minutes.
Backlight brightness adjustment function has 3 optional levels, corresponding to the
dark, medium and bright. It is set in first level in default.

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2.3.3 Language
Device provides two operat ing languages in Chinese and English. Customers can choose
according to need.
2.3.4 Version
User can view version number and identification S/N code in the page.

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2.4 Test Setup
2.4.1 Developer Tools
Developer tools are provided for developers only, the function is not open during the use
of device. The details are provided in 4.3.

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2.4.2 Measurement unit selection
Two opt ional units of illumination are provided, Lx and Fcd.
2.5 Parameter description
Select the option of parameter description, press the OK to jump into menu below.

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The definit ion of photometric and colorimetric symbols are provided in the page for
operat ion.
Ⅲ
Measurement
3.1 Measure Operation
After the startup-setting finished, point ing the photosensit ive lens at light source to be
measured directly and it starts measuring immediately.
The data shows on the display screen.

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User would learn the parameters of light source measured intuitively from the data on
the screen.
3.2 Operation during Measuring
Press the ‘hold’ key until the word ‘hold’ shows on the upper right corner of the screen,
then the measuring process would end, the test data would be stored in SD card
automatically.

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Press the ‘hold’ key again and measuring process starts again, as below:
When a device complete a set of data testing, user can press ‘MENU’ key to jump
into homepage and perform other operations. If press ‘MENU’ again, the page
would return to measuring page.
3.3Color Difference Value and Chromaticity Coordinates

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When we press the ‘ok’ key, it jumps into testing menu. User can check for color
difference value, chromaticity diagram and RGB value.
User can look up the latest one data of color difference value in the color difference
value opt ion, including ∆(XYZ)，∆(Evxy)，∆(Evuv)，∆Ev ∆Tc ∆uv
Chromaticity diagram is consisted with two coordinate graphs,CIE1932 and CIE1976
CIE1931

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CIE1976
RGB Value

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Select RGB test to view the RGB graph.
3.4 View Data
Enter the homepage, select the ‘SD store’, user can view the latest nine measurement
data.

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Select and press ‘OK’ key to get in the list of historical data.
Data list is sorted by time, and device only stores latest nine dada. New data would cover
previous data automatically.
User can view the history by select ing time and pressing ‘OK’ key.

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3.5 Maximum Measuring
Press the ‘MAX’ key, keep the device still and don’t move, it starts measuring
automatically.
Device measures 10 times in 5 seconds and the maximum value shows on the screen,
In the meantime, those 10 data are stored into SD card.
Press ‘MAX’ one more time to cancel the maximum measuring mode and return to
normal measuring page.
3.6 Batch Data Processing
Either by connecting the computer with data line or taking out the SD card in device, user
can do data batch processing. Txt file would be saved by device, and if imported into PC,
the file would show as excel format, which is benefit for data management.
Import the txt file in SD card into PC software:

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Select file and click import, click the data of certain point of time user can view the
number of measuring times.
Select file and click export button to get the excel file of data from PC.